From a868e44333ebac080dd6ed81e5ae580691f7fd18 Mon Sep 17 00:00:00 2001 From: Peter Howard Date: Mon, 23 Mar 2015 09:19:56 +1100 Subject: davinci: add support for omapl138-lcdk board Signed-off-by: Peter Howard [trini: Add config file, update for ..._ether_addr() -> ..._ethaddr() rename] Signed-off-by: Tom Rini --- board/davinci/da8xxevm/Kconfig | 13 + board/davinci/da8xxevm/MAINTAINERS | 6 + board/davinci/da8xxevm/Makefile | 1 + board/davinci/da8xxevm/README.omapl138-lcdk | 28 ++ board/davinci/da8xxevm/omapl138_lcdk.c | 383 ++++++++++++++++++++++++++++ 5 files changed, 431 insertions(+) create mode 100644 board/davinci/da8xxevm/README.omapl138-lcdk create mode 100644 board/davinci/da8xxevm/omapl138_lcdk.c (limited to 'board/davinci') diff --git a/board/davinci/da8xxevm/Kconfig b/board/davinci/da8xxevm/Kconfig index 1108e4b..33bfcc3 100644 --- a/board/davinci/da8xxevm/Kconfig +++ b/board/davinci/da8xxevm/Kconfig @@ -23,3 +23,16 @@ config SYS_CONFIG_NAME default "da850evm" endif + +if TARGET_OMAPL138_LCDK + +config SYS_BOARD + default "da8xxevm" + +config SYS_VENDOR + default "davinci" + +config SYS_CONFIG_NAME + default "omapl138_lcdk" + +endif diff --git a/board/davinci/da8xxevm/MAINTAINERS b/board/davinci/da8xxevm/MAINTAINERS index 10c4e2f..f32ce66 100644 --- a/board/davinci/da8xxevm/MAINTAINERS +++ b/board/davinci/da8xxevm/MAINTAINERS @@ -12,3 +12,9 @@ F: include/configs/da850evm.h F: configs/da850_am18xxevm_defconfig F: configs/da850evm_defconfig F: configs/da850evm_direct_nor_defconfig + +OMAPL138_LCDK BOARD +M: Peter Howard +S: Maintained +F: include/configs/omap1l38_lcdk.h +F: configs/omapl138_lcdk_defconfig diff --git a/board/davinci/da8xxevm/Makefile b/board/davinci/da8xxevm/Makefile index 4da509b..93e1f1d 100644 --- a/board/davinci/da8xxevm/Makefile +++ b/board/davinci/da8xxevm/Makefile @@ -9,3 +9,4 @@ obj-$(CONFIG_MACH_DAVINCI_DA830_EVM) += da830evm.o obj-$(CONFIG_MACH_DAVINCI_DA850_EVM) += da850evm.o +obj-$(CONFIG_MACH_OMAPL138_LCDK) += omapl138_lcdk.o diff --git a/board/davinci/da8xxevm/README.omapl138-lcdk b/board/davinci/da8xxevm/README.omapl138-lcdk new file mode 100644 index 0000000..ea0c53d --- /dev/null +++ b/board/davinci/da8xxevm/README.omapl138-lcdk @@ -0,0 +1,28 @@ +Summary +======= +This README assumes you have read README.da850. It contains some additional +information specific to building the omapl138-lcdk. The AIS file as generated +by the build is, currently, not useable due to differences in the flash +available on this board, as compared to the da850evm boards. + +Flash Differences +================= +Refer to the discussion in [1] for more detail - basically the da850evm uses +SPI flash whereas the lcdk uses NAND flash to store the bootloader, and +the support isn't there in the SPL code. + +It should be possible to add the support in the SPL code should someone be +sufficiently motivated. + +Using the built image +===================== +The output image to use is u-boot.bin. This needs to be converted to an +AIS file as described in [1] and then flashed using the utitilty linked to +there and also described in README.da850. You _may_ be able to write using +u-boot itself, but the commands in README.da850 won't work as they write to +SPI rather than NAND. + +Links +===== +[1] + http://e2e.ti.com/support/dsp/omap_applications_processors/f/42/t/386829 \ No newline at end of file diff --git a/board/davinci/da8xxevm/omapl138_lcdk.c b/board/davinci/da8xxevm/omapl138_lcdk.c new file mode 100644 index 0000000..bef2570 --- /dev/null +++ b/board/davinci/da8xxevm/omapl138_lcdk.c @@ -0,0 +1,383 @@ +/* + * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ + * + * Based on da850evm.c. Original Copyrights follow: + * + * Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. + * Copyright (C) 2007 Sergey Kubushyn + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#ifdef CONFIG_DAVINCI_MMC +#include +#include +#endif + +DECLARE_GLOBAL_DATA_PTR; + +#define pinmux(x) (&davinci_syscfg_regs->pinmux[x]) + +#ifdef CONFIG_DAVINCI_MMC +/* MMC0 pin muxer settings */ +const struct pinmux_config mmc0_pins[] = { + /* GP0[11] is required for SD to work on Rev 3 EVMs */ + { pinmux(0), 8, 4 }, /* GP0[11] */ + { pinmux(10), 2, 0 }, /* MMCSD0_CLK */ + { pinmux(10), 2, 1 }, /* MMCSD0_CMD */ + { pinmux(10), 2, 2 }, /* MMCSD0_DAT_0 */ + { pinmux(10), 2, 3 }, /* MMCSD0_DAT_1 */ + { pinmux(10), 2, 4 }, /* MMCSD0_DAT_2 */ + { pinmux(10), 2, 5 }, /* MMCSD0_DAT_3 */ + /* LCDK supports only 4-bit mode, remaining pins are not configured */ +}; +#endif + +/* UART pin muxer settings */ +static const struct pinmux_config uart_pins[] = { + { pinmux(0), 4, 6 }, + { pinmux(0), 4, 7 }, + { pinmux(4), 2, 4 }, + { pinmux(4), 2, 5 } +}; + +#ifdef CONFIG_DRIVER_TI_EMAC +static const struct pinmux_config emac_pins[] = { + { pinmux(2), 8, 1 }, + { pinmux(2), 8, 2 }, + { pinmux(2), 8, 3 }, + { pinmux(2), 8, 4 }, + { pinmux(2), 8, 5 }, + { pinmux(2), 8, 6 }, + { pinmux(2), 8, 7 }, + { pinmux(3), 8, 0 }, + { pinmux(3), 8, 1 }, + { pinmux(3), 8, 2 }, + { pinmux(3), 8, 3 }, + { pinmux(3), 8, 4 }, + { pinmux(3), 8, 5 }, + { pinmux(3), 8, 6 }, + { pinmux(3), 8, 7 }, + { pinmux(4), 8, 0 }, + { pinmux(4), 8, 1 } +}; +#endif /* CONFIG_DRIVER_TI_EMAC */ + +/* I2C pin muxer settings */ +static const struct pinmux_config i2c_pins[] = { + { pinmux(4), 2, 2 }, + { pinmux(4), 2, 3 } +}; + +#ifdef CONFIG_NAND_DAVINCI +const struct pinmux_config nand_pins[] = { + { pinmux(7), 1, 1 }, + { pinmux(7), 1, 2 }, + { pinmux(7), 1, 4 }, + { pinmux(7), 1, 5 }, + { pinmux(8), 1, 0 }, + { pinmux(8), 1, 1 }, + { pinmux(8), 1, 2 }, + { pinmux(8), 1, 3 }, + { pinmux(8), 1, 4 }, + { pinmux(8), 1, 5 }, + { pinmux(8), 1, 6 }, + { pinmux(8), 1, 7 }, + { pinmux(9), 1, 0 }, + { pinmux(9), 1, 1 }, + { pinmux(9), 1, 2 }, + { pinmux(9), 1, 3 }, + { pinmux(9), 1, 4 }, + { pinmux(9), 1, 5 }, + { pinmux(9), 1, 6 }, + { pinmux(9), 1, 7 }, + { pinmux(12), 1, 5 }, + { pinmux(12), 1, 6 } +}; + +#endif + +#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII +#define HAS_RMII 1 +#else +#define HAS_RMII 0 +#endif + +const struct pinmux_resource pinmuxes[] = { + PINMUX_ITEM(uart_pins), + PINMUX_ITEM(i2c_pins), +#ifdef CONFIG_NAND_DAVINCI + PINMUX_ITEM(nand_pins), +#endif +}; + +const int pinmuxes_size = ARRAY_SIZE(pinmuxes); + +const struct lpsc_resource lpsc[] = { + { DAVINCI_LPSC_AEMIF }, /* NAND, NOR */ + { DAVINCI_LPSC_SPI1 }, /* Serial Flash */ + { DAVINCI_LPSC_EMAC }, /* image download */ + { DAVINCI_LPSC_UART2 }, /* console */ + { DAVINCI_LPSC_GPIO }, +#ifdef CONFIG_DAVINCI_MMC + { DAVINCI_LPSC_MMC_SD }, +#endif +}; + +const int lpsc_size = ARRAY_SIZE(lpsc); + +#ifndef CONFIG_DA850_EVM_MAX_CPU_CLK +#define CONFIG_DA850_EVM_MAX_CPU_CLK 456000000 +#endif + +/* + * get_board_rev() - setup to pass kernel board revision information + * Returns: + * bit[0-3] Maximum cpu clock rate supported by onboard SoC + * 0000b - 300 MHz + * 0001b - 372 MHz + * 0010b - 408 MHz + * 0011b - 456 MHz + */ +u32 get_board_rev(void) +{ + return 0; +} + +int board_early_init_f(void) +{ + /* + * Power on required peripherals + * ARM does not have access by default to PSC0 and PSC1 + * assuming here that the DSP bootloader has set the IOPU + * such that PSC access is available to ARM + */ + if (da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc))) + return 1; + + return 0; +} + +int board_init(void) +{ +#ifndef CONFIG_USE_IRQ + irq_init(); +#endif + + /* arch number of the board */ + gd->bd->bi_arch_number = MACH_TYPE_OMAPL138_LCDK; + + /* address of boot parameters */ + gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR; + + + /* setup the SUSPSRC for ARM to control emulation suspend */ + writel(readl(&davinci_syscfg_regs->suspsrc) & + ~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C | + DAVINCI_SYSCFG_SUSPSRC_SPI1 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 | + DAVINCI_SYSCFG_SUSPSRC_UART2), + &davinci_syscfg_regs->suspsrc); + + /* configure pinmux settings */ + if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes))) + return 1; + +#ifdef CONFIG_NAND_DAVINCI + /* + * NAND CS setup - cycle counts based on da850evm NAND timings in the + * Linux kernel @ 25MHz EMIFA + */ + writel((DAVINCI_ABCR_WSETUP(15) | + DAVINCI_ABCR_WSTROBE(63) | + DAVINCI_ABCR_WHOLD(7) | + DAVINCI_ABCR_RSETUP(15) | + DAVINCI_ABCR_RSTROBE(63) | + DAVINCI_ABCR_RHOLD(7) | + DAVINCI_ABCR_TA(3) | + DAVINCI_ABCR_ASIZE_16BIT), + &davinci_emif_regs->ab2cr); /* CS3 */ +#endif + + +#ifdef CONFIG_DAVINCI_MMC + if (davinci_configure_pin_mux(mmc0_pins, ARRAY_SIZE(mmc0_pins)) != 0) + return 1; +#endif + +#ifdef CONFIG_DRIVER_TI_EMAC + if (davinci_configure_pin_mux(emac_pins, ARRAY_SIZE(emac_pins)) != 0) + return 1; + davinci_emac_mii_mode_sel(HAS_RMII); +#endif /* CONFIG_DRIVER_TI_EMAC */ + + /* enable the console UART */ + writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST | + DAVINCI_UART_PWREMU_MGMT_UTRST), + &davinci_uart2_ctrl_regs->pwremu_mgmt); + + return 0; +} + +#ifdef CONFIG_DRIVER_TI_EMAC + +/* + * Initializes on-board ethernet controllers. + */ +int board_eth_init(bd_t *bis) +{ + if (!davinci_emac_initialize()) { + printf("Error: Ethernet init failed!\n"); + return -1; + } + + return 0; +} + +#endif /* CONFIG_DRIVER_TI_EMAC */ + +#define CFG_MAC_ADDR_SPI_BUS 0 +#define CFG_MAC_ADDR_SPI_CS 0 +#define CFG_MAC_ADDR_SPI_MAX_HZ CONFIG_SF_DEFAULT_SPEED +#define CFG_MAC_ADDR_SPI_MODE SPI_MODE_3 + +#define CFG_MAC_ADDR_OFFSET (flash->size - SZ_64K) + +static int get_mac_addr(u8 *addr) +{ + /* Need to find a way to get MAC ADDRESS */ + return 0; +} + +void dsp_lpsc_on(unsigned domain, unsigned int id) +{ + dv_reg_p mdstat, mdctl, ptstat, ptcmd; + struct davinci_psc_regs *psc_regs; + + psc_regs = davinci_psc0_regs; + mdstat = &psc_regs->psc0.mdstat[id]; + mdctl = &psc_regs->psc0.mdctl[id]; + ptstat = &psc_regs->ptstat; + ptcmd = &psc_regs->ptcmd; + + while (*ptstat & (0x1 << domain)) + ; + + if ((*mdstat & 0x1f) == 0x03) + return; /* Already on and enabled */ + + *mdctl |= 0x03; + + *ptcmd = 0x1 << domain; + + while (*ptstat & (0x1 << domain)) + ; + while ((*mdstat & 0x1f) != 0x03) + ; /* Probably an overkill... */ +} + +static void dspwake(void) +{ + unsigned *resetvect = (unsigned *)DAVINCI_L3CBARAM_BASE; + + /* if the device is ARM only, return */ + if ((REG(CHIP_REV_ID_REG) & 0x3f) == 0x10) + return; + + if (!strcmp(getenv("dspwake"), "no")) + return; + + *resetvect++ = 0x1E000; /* DSP Idle */ + /* clear out the next 10 words as NOP */ + memset(resetvect, 0, sizeof(unsigned) * 10); + + /* setup the DSP reset vector */ + REG(HOST1CFG) = DAVINCI_L3CBARAM_BASE; + + dsp_lpsc_on(1, DAVINCI_LPSC_GEM); + REG(PSC0_MDCTL + (15 * 4)) |= 0x100; +} + +#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII +/** + * rmii_hw_init + * + */ +int rmii_hw_init(void) +{ + return 0; +} +#endif /* CONFIG_DRIVER_TI_EMAC_USE_RMII */ + +int misc_init_r(void) +{ + uint8_t tmp[20], addr[10]; + + + if (getenv("ethaddr") == NULL) { + /* Read Ethernet MAC address from EEPROM */ + if (dvevm_read_mac_address(addr)) { + /* Set Ethernet MAC address from EEPROM */ + davinci_sync_env_enetaddr(addr); + } else { + get_mac_addr(addr); + } + + if (is_multicast_ethaddr(addr) || is_zero_ethaddr(addr)) { + printf("Invalid MAC address read.\n"); + return -EINVAL; + } + sprintf((char *)tmp, "%02x:%02x:%02x:%02x:%02x:%02x", addr[0], + addr[1], addr[2], addr[3], addr[4], addr[5]); + + setenv("ethaddr", (char *)tmp); + } +#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII + /* Select RMII fucntion through the expander */ + if (rmii_hw_init()) + printf("RMII hardware init failed!!!\n"); +#endif + + dspwake(); + + return 0; +} + +#ifdef CONFIG_DAVINCI_MMC +static struct davinci_mmc mmc_sd0 = { + .reg_base = (struct davinci_mmc_regs *)DAVINCI_MMC_SD0_BASE, + .host_caps = MMC_MODE_4BIT, /* DA850 supports only 4-bit SD/MMC */ + .voltages = MMC_VDD_32_33 | MMC_VDD_33_34, + .version = MMC_CTLR_VERSION_2, +}; + +int board_mmc_init(bd_t *bis) +{ + mmc_sd0.input_clk = clk_get(DAVINCI_MMCSD_CLKID); + + /* Add slot-0 to mmc subsystem */ + return davinci_mmc_init(bis, &mmc_sd0); +} +#endif -- cgit v1.1